1. Boston MedFlight, Boston, MA, USA
2. Division of Pulmonary, Critical Care and Sleep Medicine, Department of Internal Medicine, Beth Israel Deaconess Medical Center, Boston, MA, USA
3. Department of Emergency Medicine, Beth Israel Deaconess Medical Center, Boston, MA, USA
4. Division of Critical Care, Department of Anesthesia Critical Care, Beth Israel Deaconess Medical Center, Boston, MA, USA
5. Department of Emergency Medicine, Massachusetts General Hospital, Boston, MA, USA
6. Department of Surgery, Brigham and Women’s Hospital, Boston, MA, USA
7. Division of Pulmonary & Critical Care Medicine, Lahey Hospital & Medical Center, Boston, MA, USA
8. Department of Emergency Medicine, Tufts Medical Center, Boston, MA, USA
9. Department of Anesthesiology, Critical Care and Pain Medicine, Boston, MA, USA
10. Department of Emergency Medicine, Brigham and Women’s Hospital, Boston, MA, USA